In daffodils yellow flower color is dominant over white flower color. What is the genotype of any yellow-flowering plant resulting from this species?
a. Yellow (Y) and white (y) alleles present on two chromosomes.
b. A yellow allele (Y) present on both homologous chromosomes.
c. A yellow allele (Y) present on at least one of the two homologous chromosomes.
d. Yellow (Y) and white (y) alleles present on one chromosome.